Operating mechanism for friction-clutches.



mmy/ 0,13. KING & G. B. WESTON. OPERATIING MECHANISM FOR FRICTION GLUTCHES. APPLIOATION FILED MAI 25,1911.

1,039,755. Pe Ltented 001;. 1,1912.

wmmm "UNITED GHARLES B. KING AND'CLARENCE s. Wesson,

MARION srnem snovnx. COMPANY, or MAR ON, OHIO,A console-Arron or 03510.

.fication, reference being nation of a rotary power transmitting men; 32 Iiler, showing theclutch operating-mecha-' Y .nism in-seotion. 1 AS shoWn-inithis drawing the invention is -lapgplied to airiction clntch for connecting a-: Iotary yowertransmitting' member to a part to be operated. The part to be operated :1s,' 7 .ingthe present instance :1 admin l -looselyf OPERATING iv nonamsnron rnicrron omronns." r

Specificationiof LettersEatent. f en e -1 91 Application filed May 25, 1911. Serial Ni5629,255-

To alllwhom it concern; Be it known-that We, CHARLES B. KING;

and CLARENCE B. WESTON, citizens of the:

United .States, residing at Marion, inthe county of 'Marion and State ,of Ohio, have im'ent-ed certain new. and useful Improve-i ments in Operating Mechanlsm for F r1ot1oni Clutches, of which the following is a speci@ had therein to t-hej accompanying drawing.

- This invention relates to operating ineohanism for friction clutches and is in. the D117"? ture of an improvement .upon Patent No.

666,348,,gra11ted Jany 22, 1901, to G. -W.?

.King and J. Barnha'rt and assigned tof the gn of the presentinventim, o The object of the fmve'ntioh is to provide a; mechanism of this character of a very elmg ple construction andlcomprising a minimum number of parts, which Wllllbfl positive in 1 its operation and will not he subjected, -io strain or undue wearinitsoperation. 1

The accompanying drawing is a'fside el'en mounted upon a sha'ft 2 and having at one; end a flange or 111113 const1tut1ng\one mem-g' f ber of the friction clutch. Rig'idly secured: #t'o the shaft 2 is a rotary power transmitting;-

member, such as gear 4. The second member;

of the. friction clutch is'earried by this (gearf rand islin the nature of a friction hand 5 se-- cured at one end toa fixed pm of the gear,"

' as indicated at 6,5" and having-its other end adjustably connected to the gear to enable the hand .to be tightened or loosened onthe' clutch member the form here shown 3' this is accomplished by connecting theend,

of the friction band to a-pin '4" eocentrioall'y V mounted on 'asliaft 8 joilrnaled in a lug .9-

carried :by the-gear 4;. operating arm 10" is rigidly' secured to the shait and, manipulating this arm,1 th e -,fr1ct1on band .5 can .be tightened or loosened-on the clutch- ,ine'mber 3 ,carried by, the drum 1 and this vnected-.thereto a short comprises a cylinder 11. rigidly secmfed itof ff the gear. 4, having one end closed ahdt-he;

Mounted Within the cylfliston .2; thatis, a Dist-on; .coinprlslng a head: and j a .-'c ylindric'al "ext-en- I sion extending outwardly from the-head and fitting snugly Within the cylinden-x In addi-f tion to the'nsual pistonringthe' outer end". of the cylinder is. pi owj'ided with a gland 13 to prevent any lehkage between the Walls of the cylinder an'd the' piston. v This-i piston is connected, with the operating Karin" 10 of the clutch mechanism hymeans ioi-a,

; piston. rod pi" link l' l ipivotally connected at} one end t-osaid arm, extending thronghlthe 21 extension of' th'e'fpiston and .pliZQtfi-lly conjv nested to a lug, carried by. the piston head; Wltllll'lftl16 hollow extension thereto. In this- 1-1nanner the piston rod is'lfree to -."ao co1nrno- ,&

other end open j lnder 11 is a trunk "date itself to the'yaryingipositions of the p ston Zandithe arm, Without any'strain ivhatjger-er, being imposed thereon" and the stufiing box for the piston rod'in theendj'of' the cyl "inder isentirely-dispensed with; The-{closed end ofthe cylinder "1'1 fc'oinx-nunicates" i'ohQaj. suitable sourceof. fluid supply. In; thepies: ent instance the cylinder-ispro iidedfin its end with v an inlet opening 16 having. con

pi e-'or'nipple 17"pr'o- .Yided'witha T coupling' lS'to' which'isieon nected apipe 19 leading to" theisouroe of fluid supply.) fordergthat fluid may lie-connected with the cylinder du'r1 ng the opetlation of the rOtaTygear'the shah-3.2;; I 'is preferably holiowf and the supply pipe =m0unted therein. 'This '-fealtu1;e offcienst-ruo" 7 :ti0n, is similar to that-shown. and, described in the above-mentioned pate'nt an'd iforms-nof' part of the present invention. The fluid s npjr p13;- is controlledl hy-suitablefvahze mesa-:1 n'isin which. is" not-here shown. "llie third.-

hranch of the T-couplmg' 1.8-" is closed hyiit ho1low plug 20vpr'ovi'de'd with apet clock 21 Bf' izutilizing the T-conp'l-ingnatthijs PQintI provide means whereby.-

.iuhrioen't can be readily inj ected into the'lcyflindeir an'd I h s,

ither provide means for draining the'- sazne To accomplish-this latter object it is 0111? V necessary to open the pet-cock 2-]. and mox e n the cylinder into avertioehposition With-the .pet-ooc'k ext'ending downward! f L The outward movement ofthefplsto for .retiiening theisaine to its-innermost or foremost. position; As here shown; a" rod 22 on MARION, one), AssIe 'oRs rojf'min 3125 l v positively liniitedand means are provided is pivotallyconnected to. the operating arm of the mechanism-'fiitd with relation to the arm, which, in the 'present instance, cornprices :1 lug 23rigidly secured to the. cylinder iliand having its outer endslotted, as indi;

cited" at 24,- and' provided with a flange or projection- 25.. The rod 22 extends through the slot inthe lug 23 and has anut 26 screw;- threaded on the free end thereof. A spring 27, is coiled about the rod between the'nut 26 dthe" lug 23 and tends to move the piston toward its normal position. stop is car-. riedby' the rod-22 to limit itsrout-ward movemeat-and this, inthe presentdevice, comprises a shoulder-'28 formed on the rod 22 and adapted to engage the lug 23 .on the opposite sides of'the slot 24:.

The operation of the mechanism, will be readil understood from the foregoing description and itwill be "apparent that we have provided a mechanism of this character' which is'very simple in its construct-ion comprising a minimum number of parts and having these partsso arranged that they will not be subjected to strain or undue wear, this latter being particularly true of ,thepiston and piston rod Further, it will be noted that means. are provided, without the formation of additional openings in the cylindergfor injecting lubricant into the same and for draining said 'cyli'iider.

While we have herein illustrated one form of our invention and have shown the same applied toja friction-clutch, itwill be apparent thatthe construction of the mechanism can be altered and that the invention can beapplied to devices other than the friction I clutch. We, hcrefore, wish it to be understood that we do not desire to be limited to the details of Construction shownandde-, scribed, for obvious modifications will occur to one skilled in the art. i A ZHa'ving thus fully described ou1; ,inven tion,what we claim as new and desire to se-.

ur'e-by Letters Patent, is

l-.1 The combination, with a rotary power transmitting 'memtf er, a clutch member carried thereby, and an arm operatively co n-' nec'ted with said clutch member, of a cylinder mounted on said power transmitting member havingfone end open, a RIStOII operatingparts'connected with said cylinder and said mm, respectively, to positively limit the outward movementof said piston,

. and means to return said piston to its normal position.

mounted in said cylinder and comprislng a .head ,havinga-cylindrical extension, a pis-' I The combination, with a rotary power transmitting member, a jclutch'me mber car ried thereby, and anarm operativelycou nected with said clutch member, ofa cylinder mounted onv said power transmitting 7 member, having one end open and having a -fluid inlet at the other end thereof, a piston mounted in said cylinder, a piston rod pivo'tally connected'to said piston and to'said' operating arm, a lugmounted on a part of said mechanism fixed with relation to said cylinder and having an opening therein, a rod pivotally .-conne'cted to said operatin' arm, extending,i=throughsaid opening'anc l having a partto=; engage saidlug and'limit "go the outward movemer'itithereof, and a spring connected with saidrod to' return said pistonto its normal position.

.3. The combinat-ion, with a rotary power transmitting, member, a friction band cars5 ried-thereby, and an arm-operatively connected with said .band,of a cylinder mounted on said power transmitting member and having'one end open, and aiiuid' inlet at the opposite end thereof, a piston mounted in said cylinder comprising a head and cylin drical extension, a: "pistonrod extending through said extensionfand pivotally connected to said head its inner. endiand pivotally connected to said operating arm at its outer end, a lug rigidlysecured to said cylinder and having its outer end slotted and provided with a flattge, a rodpivotal-ly connected to said operat ng arm, extending through said slotand provided on its .free

end with a nut a spring. coiled a out said rod and adaptc to engage said lug beneath said flange, said rod hating a shoulder adapted to engage said lug. opposite sides of said slot. 1 v

4. The combination, with a rotary mem: ber, and a clutch-member carried thereby, a cylinder mounted on said rotary member, having one end open and having a packin gland near its open end, a piston mounted in said cylinder and comprising a cylindrical portion extending beyond said packing gland, a piston rod pivotally connected at one end tosaid piston and operatively connected at its other end with saidclutch member, of a cylinder mounted on said rotary member and having one end open,

piston mounted in said cylinder, a piston "1'25 rod connecting said piston to said operating arm, means to positively limit the outwar' movement of said PlStOIl, a fluid supply pipe 7,

connected with the closed end of said cylin- -der, a drain cock communicating with said 130' member, means to admit fluid to said cylincylinder through a portion of. said supply. pipe,' vhere bythe rotation-of said rotary member \yill moie-said cylinder intoa posi-. tion to cause it to drain through its supply pipe.

6. 'The combination 'with. a rotary memher, a clutch member mountedthereon, and an arm operatively connected tosaidclutch member, of a cylinder mount-ed on said rotary member and having oneend' open, a piston mounted in said cylinder, a .piston' rod connecting said piston to said operating arm, means to positively limit the outward. movement of said'piston, a nipple mounted in the closed end of said cylinder, a T-cou-" pling carried by said nipple, a supply pipe connected. toone branch'of said coupling, and a drain cock connected to the other branch thereof,'whereby said rotary member may be moved to bring said cylinder into a position to cause it to drain through said nipple.

In testimony whereof, we aflix our signatures in presence of two witnesses.

CHARLES E. KlNG.. CLARENCE B. WESTON. Witnes'ses:

H. L. GURLEY, N. E. CRIssINoER. 

